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Changing ICU & Ignition coil 200

posted by  macs70GLT on  Fri Oct 22 07:08 CST 2004
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last visit: Fri Jul 2 07:33 CST 2010
[RELATED]

I have a no-start problem on an 88 240. Some of the things I'm suspecting are the coil & ICU.

Do coils fail often? I have weak spark, but measure 12.3 Volts at term 15 which drops to 10.3 Volts at cranking. The volvo dealer doesn't stock coils, he suggested the ICU may be the culpret.

For the ICU I assume I need one from model years 1985-1988; B230F engine with Volvo/Chrysler ignition (p/n 3517641 on mine).
Any way for me to check mine?
I haven't been able to backprobe the wires at the connector. Can't get a probe in there. I can get a used one for $150. The parts place told me I just need new pins for the cable. Bentley suggests replace the cable that connector gets destroyed doing R & R. Is this true?

Thanks for the help.

Mike
1988 245 217K usually running!





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